View Full Version : 1.3 bar radiator cap TRD/SARD on st165 intercooler/coolant reservoir?

02-04-2010, 09:18 PM
I am going to be replacing my radiator and getting either a SARD or TRD 1.3 bar type S radiator cap for it. I want to change the reservoir cap and intercooler cap as well. Is it okay to put a higher pressure cap on the intercooler? Any advantages/disadvantages to this?

02-05-2010, 01:30 AM
Using a higher pressure cap will RAISE the boiling point of the water.

Just replace everything with the stock ratings, you'll be fine.

02-05-2010, 03:57 AM
But isn't that a good thing?

02-05-2010, 09:09 AM
I don't know man.

I am tired right now. :)

I'm sure you will be fine either way.

02-05-2010, 11:17 AM
1.3 def for the radiator cap. will stop coolant bubbling after the engine is off. reduces hot spots when the water pump turns off.. rest are fine!!! TRD FTW

02-05-2010, 11:41 AM
Yeah I would get TRD 'cept they are around $50 A PEICE...SARD caps are the same pressure/design and I can get those for $22 each.

Probably will do 1.3bar caps on reservoir/intercooler as well unless someone can convince me that I'm better off running the stock .9bar caps (they need to be replaced either way).

02-05-2010, 12:16 PM
Just do them all the same. 1.3/1.3

02-05-2010, 12:22 PM
Good deal. Thanks 90'GT-FOUR and shadowlife25. Will report back here if engine blows up/melts/I see Bigfoot/etc. :)

02-25-2010, 03:50 PM
no. use the dummy cap on the radiator and the 1.3 bar on the pressure tank.
the intercooler is fine with the stock cap.